Improved oeeci-valye foe pumps



@uitrit ats @anni @ffice Letters Patent No. 81,804, datcdlgcptember 1,1868.

IMPROVED GHEGKVALVE FOR PUMPS.

@Lterlgehnle mam tu im tlgesr tettrrs tant mit mating ind si tige tane.

TO ALL WHOM IT MAY CONGERN: l

Be it known that I, WILLIAM R. MALONE, of vMason, in the county oi" Mason, and State of West Virginia,

have invented a new and improved Check-Valve for Pumps and I do hereby declarethat the following'is a full,

clear, and exact description thereof, which will enable others skilled in. the art to make and use the same, reference being had to the accompanying drawings, forming part of this specication.

My invention relates to improvements in cheek-valves for pumps, the object of which is to provide a more simple'and eiective valve than those new in use.

In consists in providing a hollow tapered seat, having a downward projection for supporting the valvestem, which is provided with jam-nuts to regulate the amount of lift of the valve, which is seated upon the tcp of the valve-seat, which latter is arranged to be fitted into a box or cylinder, and secured in the Well-tube atY any desired point, as will be more fully described on reference to the accompanying drawings, wherein- Figure 1 represents a. sectional elevation of the same. I

AFigure 2 represents a cross-section of the same.

Similar letters of reference indicate corresponding parts,

A represents the valve-seat, which is of a slightly conical outward form from the top to the point B, and is arrangedto be fitted within a box to be tired4 in the well-tube, or, instead of a separate box, a ehambermay be provided in the said tube. The prolongation of the seat from the point Btc the end C is anirregular taper, each side of which is provided, for a greater portion of the distance, with openings` communicating with the bore D of the seat, which, at the lower end, terminates in a synan hole, having straight sides.`

D represents a valve-stein, -the lowerv portion of which is made of the right size and shape to fit and work freely in the-said square termination'of the bore of the seat, and is provided at the end with a nut, E, having a socket, F, `whichwmay be filled with elastic packing, G, and.v is also provided with ajam-nut, H.

l The upper portion ofthe-stem is4 provided with wings, I, to guide the stem, and always maintain it in a central position. Above these wings a valve, K, is ltted,.and secured by the nut L. The stem is continued for some distance above the nut L, as shown at M, and provided with a screw-thread whereby a rod, having ,a corresponding screwed socket, may be connected to draw the check-valve out of its seat in the well-tube, when desired.

The valve K may be provided with a leather, rubber, or any other disk of yielding material on its under face, or it may be ground or otherwise-suitably fitted to the seat A, and used-without such disk;

'Ihe object of the square termination of the bore ot the valve, andthe square form of the shank or stem fitted therein, is to facilitate'thc connection oi, means for drawing the valve and vsent out'of their position in the well-tube. p

In operation, the water is drawn, by the suction of the plunger, in through the side-openings under th valve, which it raisesso as topass the same, which sets back-on its seat when the'suction ceases, and stops the backward flow, as is well understood.

I claim as new, and desire to secure by Letters Patent- I The valve-scat for check-valves provided with the conical form from A to B, and the taper prolongation Vprovided with the opening in the side and with the square termination ot` the bore D, in combination with the stem and valve, constructed and arranged substantially as and for the purpose specified. The above specification of my invention signed by me, this 1st day of April, 1868.'

. WM. R. MALONE. Witnesses: Y

Tiros. W. M ALONE, D. C. Gnirvns. 

